Pipe cleaning device



July 11, 1961 H. G. HAAs 2,991,493

PIPE CLEANING DEVICE Filed Aug. 7, 1959 2 l 4o A? :F 1 ai 443 JG. 52 S056 4 lfe 24'? 'ze ze@ @4 7 '74 28 62 74 "l2 IO *lo 2 Q 58,8 8f 64 /7 IQ 6,@ G5 e f@ E@ E@ f@ 68 @o e8 '1B/QQ K\\\\\ \x E I6 6% es l@ 6 14 I4 2'22 a2 :FIGA /24 2220A 38o '2g/af; 4 56 42 IN V EN TOR.

HENRYG. MAAS BY United, Safe Patent@ 52,991,493: PIPE CLEANING DEVICE fa- Henry G. Haas, 820 W. St.,.Be'lleville,-1Ill Filed Aug. 7, 1959, Ser. No: 832,335 1 u Claims.1(Cl.v15104.16):., i

This invention. relates to,` an .improved and ,reversible device for cleaning large'dimeterpipefsuch ,asfsewer pipe, by being pulled through the pipfin either direction. n

The primary object of 'the rnventionis to provide` an eilcient and rugged device oftliekind indicated, which is of simplified construction," ndiwhichcan be made of standard and readily available componentsatrelatively low cost.

Another objectl vof the invehtinis tff'povide a more easily serviced device of the character'indicated above which can be easily disassembled and reassembled, to

replace worn or damaged"parts;andgto enable readily substituting larger or smaller squeegee or wiperfrings thereon,` for the cleaning of-larger or'smallerdiam'eter pipes.

Other important objectsand advantageous features of the inventionV will beapparent 4from the. following Edescription and the accompanying drawings, wherein, for purposes of illustration only, a specilicform of the invention is set forth in detail. L

In the drawings: f f p FIGURE l is a longitudinal-section, partly elevation, of a device ofthe ,invention-p t FIGURE 2 is a vertical section taken of FIGURE 1;

FIGURE 3 is a fragmentary end elevation of FIGURE- 1; and

FIGURE 4 is a fragmentary schematic view, partly in section, showing the device in operative position in a pipe to be cleaned, and connected to pulling cables.

Referring in detail to the drawings, wherein like numerals designate like parts throughout the several views, the illustrated device, generally designated 10, comprises` a pair of similar axially spaced annuli, which can be standard pipe flanges 12, and which are reversed with respect to each other. The dat, unindented inner sides 14 of the llanges 12 face each other, and the hubs 16, which extend outwardly, have internally threaded bores 18, and the rims of the llanges 12, which are displaced inwardly of and are smaller in cross section than the hubs 16, are provided with aligned circumferentially spaced bolt holes 22, through which clamping bolts 24 are extended, which have thereon washers 26, and nuts 28 threaded on their opposite ends.

Positioned against the inner sides 14 of the flanges 12 is a pair of similar axially spaced flat rigid rings 30, which are larger in diameter than the flanges 12, but smaller in diameter than the bore 32 of a pipe 34 to be cleaned.

The rings having center openings 36 which are registered with the bores 18 of the anges 12, and have inner bolt holes 38 which are registered with the ange bolt holes 22, through which the clamping bolts 24 extend. Positioned between and clamped between the rings 3i) is a single resilient and exible circular squeegee ring 40 which is larger in diameter than the rings 30 and has a freely flexible peripheral edge portion 42 which extends beyond the peripheral edge 44 of the rings 30. r[The squeegee ring is preferably made of rubber or rubberlike material, and is somewhat larger in diameter than 2 t scraped and pushed olf the pipe bore and carried through the pipe to a clean-out (not shown).

The rings 30 have registered outer boltholes 48, which are registered with holes 50 provided 'in the squeegee ring 40, at a location outwardly of the peripheral edge 44 of the rings 30 and inwardly of the peripheral edge portion 42, through which smooth outer clamping bolts 52 are extended, which have thereon lwashers 54, wi-thnuts 56 threaded on their outer ends.

The squeegee ring 40 is preferably a relatively thick and lla-t body of uniformcross section, and has acenter opening'48 which registers with the openings 36 of the rings 30, and the bores 18 of the lianges 12, as seen in FIGURE 1. y

The device 10 further comprises a pair of similar, axially elongated shafts 58 preferably in the form of standard pipe nipples, having externally through inner and outer ends 60 and 62 respectively. The inner ends 60 are threaded into the bores 18 of related flanges 12. Threaded on lthe outer shaft ends 62 are similar caps 60, preferably standard pipe caps, which are formed in their websV 65 with threaded axial holes 66 through lwhich the threaded d shanks 68 Aof eye-bolts 70 are inwardly threaded, with washers 72 and lock nuts 74 threadedV on their inners ends against the webs 65, and with their eyes 76 extending outwardly to be connected with cables 78 the bore 32 of a pipe in which the device 10 is to be and 80, which extend through a pipe 34 in opposite directions, as shown in FIGURE 4. By alternately're-` leasing andA pulling on the cables 78 and 80', the device 10can bey worked through the pipe in opposite directions, at any location along the pipe, so that a more thorough cleaning job can be done than can be expected from operations of a one-way cleaning device.

Although there has been shown and described herein a preferred form of the invention, it is to be understood that the invention is not necessarily confined thereto, and that any change or changes in the structure of and in the relative arrangements of components thereof are contemplated as ybeing within the scope of the invention as defined by the claims appended hereto.

What is claimed is:

1. A reversible pipe cleaning device comprising a pair of axially spaced annuli, axial shafts having inner ends secured to said annuli, said shafts having outer ends, cable connecting means on said outer ends, said annuli having inner sides, a pair of axially spaced rigid rings disposed between the annuli and being engaged with the inner sides thereof, said rings being larger in diameter than said annuli, a resilient and flexible squeegee ring disposed axially between said rigid rings, said squeegee being larger in diameter than said -rigid rings and having a free flexible peripheral edge portion extending radially beyond said rigid rings, and clamping means extending through said annuli, said rigid rings, and said squeegee ring with the squeegee ring under compression.

2. In a reversible pipe cleaning device, a pair of axially spaced annuli having hubs having axial bores, shafts having inner ends fixed in said bores, said shafts having outer ends having cable connecting means thereon, a pair of axially spaced rigid rings disposed between said annuli and severally engaged with the inner sides of the annuli, said rings being larger in diameter than the annuli, an annular squeegee positioned between said rings, said squeegee being larger in diameter than the rings and having a flexible peripheral edge portion extending beyond fthe peripheral edges of the rings, and means rigidly assembling said squeegee, said rings, and said annuli together.

3. A reversible pipe cleaning device comprising a pair of axially spaced annuli, axial shafts having inner ends secured to said annuli, said shafts having outer ends, cable connecting means on said outer ends, said annuli having inner sides, a pair of axially spaced rigid rings disposed between the annuli and being engaged with the inner sides thereof, a resilient and lexible squeegee ring disposed axially between said rigid rings, said squeegee being larger in diameter than said rigid rings and having a free exible peripheral edge portion extending'radially beyond said rigid rings, land means clamping said annuli, said rigid rings, and said squeegee ring together with the squeegee ring under compression, said rigid rings being larger in diameter than said annuli and having peripheral edges spaced inwardly from the peripheral edge portion of the squeegee ring, said clamping means comprising main clamping bolts extending through said annuli, said rigid rings, and said squeegee ring.

4. A reversible pipe cleaning device comprising a pair of axially spaced annuli, axial shafts having inner ends secured to said annuli, said shafts having outer ends,

cable connecting means on said outer ends, said annuli having inner sides, a pair of axially spaced rigid rings disposed between the annuli and being engaged with the inner sides thereof, a resilient and flexible squeegee ring disposed axially between said rigid rings, said squeegee being larger in diameter than said rigid rings and having a free exible peripheral edge portion extending radially beyond said rigid rings, and means clamping said annuli, said rigid rings, and said squeegee ring together with the squeegee ring under compression, said rigid rings being larger in diameter than said annuli and having peripheral edges spaced inwardly from the peripheral edge portion of the squeegee ring, said clamping means comprising main clamping bolts extending through said annuli, 'said rigid rings, and said squeegee ring, and outer clamping bolts extending through said rigid rings and said squeegee ring and spaced outwardly from the annuli.

5. A reversible pipe cleaner comprising a pair of axiallyspaced annuli having axial openings, a pair of axially spaced rigid rings axially aligned with and engaged with the inner sides of the annli, said rings being larger in diameter than the annuli and having axial openings larger in diameter than the openings of the annuli, a resilient and tiexible squeegee ring `axially aligned with and disposed be'tweensaid rigid rings, said squeegee ring having an axial opening larger in diameter than the openings of `the annuli, rst boltmeans traversing the rigid rings and the squeegee and securing the same together, second bolt means traversing the annuli, the rigid rings and the squeegee Iri'ng and 'securing the same together, and elongatedshafts having outer and inner ends, the vinner ends of the Shaftsbeingsecurably engaged in the openings lof .annuli, ,andV cableconnecting means on the outervendsrof theshafts, l

References CitedY in the tile of this patent UNITED STATES PATENTS 650,451 Byers v,. a.. May 29, 1900 1,065,174 ,Schick a- June 17, 1913 1,985,229'I` Allen 1... a.. Dec. 25, 1934 2,289,109 Edward July 7, 1942 2,580,727 .Bryan Jan. 1, 1952 2,794,1971r A Crane 2.4.. June 4, 1957 Y a j FOREIGN PATENTS 11,160 Great Britain May 12, 1906 13,518 G-reat Britain June 17, 1898 :22;597 Great Britain i Nov. 20, 1893 246,253 1 Germany Apr. 26, 1912 

